SmokeLoader — 3d638fa0a4c17eb3ebbef857da2b5dac.exe [2540f6f9]

Tehdit 值lendirmesi

Bu ornek, hedef sisteme ek zararlı yazılım yuklemek amacıyla tasarlanmis moduler bir yukleyici (loader) olarak tespit edilmistir. Bankacılık trojanları, fidye yazılımları veya diger ikinci asama yukler indirebilmektedir.

检测到的功能

• Payload Indirme
• Surec Enjeksiyonu
• Kalicilik
• Anti-Analiz
• Sifrelenmis Iletisim

MalwareBazaar 标签

分析说明

Bu ornek SmokeLoader ailesine ait ve MalwareBazaar platformundan alınmıstır. KEYDAL Guvenlik Arastirmaları tarafından metadata analizi gerceklestirilmis ve IOC veritabanına eklenmistir.

SmokeLoader — 恶意软件档案

SmokeLoader. autoruns.exe Sysinternals version info spoofing. Spaso developer PDB username. stub.pdb loader project artifact.

恶意软件类型

Loader

编程语言

C

C2协议

HTTP

目标系统

Windows

别名 (AKA)

Dofoil

技术细节

SmokeLoader (Dofoil/Smoke Bot) is a modular loader/downloader active since 2011. Primary function: download and execute additional payloads (Emotet, TrickBot, FormBook, Ursnif). Heavy obfuscation: string encryption (RC4+XOR), process injection via APC, code injection. Heaven's Gate technique: switches from 32-bit to 64-bit mode to evade WoW64 hooks. Anti-analysis: CPUID-based VM detection, process listing for analysis tools, timing checks. Uses process hollowing to inject into explorer.exe or svchost.exe. C2 communication: RC4-encrypted HTTP POST requests with bot ID, campaign ID. Sold as pay-per-install (PPI) service on underground forums (~$400/1000 installs). Frequently updated to bypass detection, >100 variants documented.

归因 / 威胁行为者

Unknown (sold on underground forums, multiple operators)

能力与行为

Payload İndirme

Süreç Enjeksiyonu

Modüler Mimari

Kimlik Bilgisi Hırsızlığı

Yanal Hareket

Kalıcılık

Anti-VM/Sandbox

İkincil Payload Dağıtımı

IOC列表 (2 个指标)

IOC — SmokeLoader 复制

# SHA256 2540f6f96c7686299fcd27c4e17a9191e107b4e65a7c32ed1d290775e96d9bd1 # MD5 3d638fa0a4c17eb3ebbef857da2b5dac

类型	值	备注
sha256	2540f6f96c7686299fcd27c4e17a9191e107b4e65a7c32ed1d290775e96d9bd1
md5	3d638fa0a4c17eb3ebbef857da2b5dac

C2服务器 (该家族共有 5 台已记录服务器)

地址	类型	端口	协议	状态	国家
80.66.75.36	ip	80	HTTP	inactive	RU
148.72.171.175	ip	80	HTTP	inactive	US
91.243.44.247	ip	8888	HTTP	inactive	RU
185.173.35.16	ip	8080	HTTP	inactive	RU
torcavpcs1.atitech.com	domain	443	TCP	inactive	—

C2 地址仅来自 KEYDAL 团队人工验证的恶意软件样本。禁止用于商业用途。